General talk about software patterns

["devendermarri" <devendermarri AT hotmail.com>]

Hi Jan,

SingeltonPattern may not be there in top 10, bcos of the complexities it
posses in multi-threading programming
and also in c++. This object should be made atomic and synchronized so that
multi-threading operations
does not corrupt the data. Singelton makes the design easy but it also at
increased coupling and hard to maintain issues. I see most people tempted to
reduce the complexity of there design by using singelton. I think singelton
will be on the top for anti-patterns.

Thanks
Regards.


----- Original Message ----- 
From: "Jan Hannemann" 
<jan AT cs.ubc.ca>
To: 
<patterns-discussion AT cs.uiuc.edu>
Sent: Wednesday, July 06, 2005 5:03 AM
Subject: [patterns-discussion] Which patterns are more frequently used?


> I'm wondering which patterns are actually used more frequently than others
> in practice(*). In particular, I'd like to know which the top-5 (or
top-10)
> Gang-of-Four patterns(**) are in terms of number of pattern instances
found
> in practice. I do realize that this is hard to determine objectively, but
> subjective rankings are fine, too.
>
> For example, I think it is pretty clear that Interpreter is less commonly
> used in practice than, say, Observer.
>
> Are there by chance even research papers on this topic available? Or on
> related topics (empirical study of patterns in the wild)?
>
> Opinions are welcome as well. A few years back I spoke to one of the
authors
> of the GoF book and he gave me this informal list of what he thought were
> the top-9 according to his experience (most commonly used on top):
>
> Observer
> Composite
> Singleton
> Abstract Factory
> Visitor
> Adapter
> Factory Method
> Template Method
> Command
>
> Can you confirm this list, or do you have different experiences with
> patterns used in practice?
>
> Thanks!
>
> --Jan
>
>
> PS: To provide some context: my research involves design patterns (in
> particular, the GoF patterns) and I want to make sure I focus on patterns
> that are actually used in software development.
>
> (*)  With "in practice" I mean "in real-word software systems".
> (**) I'm only interested in the GoF patterns.
>
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